Bones of the Body
Long Bone Structure
Joints & Motion
Bone Physiology & Composition
Fractures & Pathologies
100

This is the longest and strongest bone in the human body, located in the upper leg

What is the Femur

100

This is the hollow, cylindrical shaft of compact bone that forms the main length of a long bone

What is the Diaphysis

100

This term describes completely immovable joints, such as the cranial sutures in the skull

What are Synarthroses

100

This medical term refers to the process of blood cell formation occurring inside bone marrow

What is Hematopoiesis

100

This type of fracture occurs when a bone breaks clean, but the broken ends do not pierce through the skin

What is a Closed (or Simple) Fracture

200

This bone forms the lower jaw and is the only moveable bone in the skull

What is the Mandible

200

These bone cells are responsible for building and depositing new bone tissue during growth and healing

What are Osteoblasts

200

This type of joint movement decreases the angle between two articulating bones

What is Flexion

200

Making up 35% of bone tissue, this organic protein fiber gives bone its flexibility

What is Collagen

200

This abnormal spinal condition is characterized by a lateral or side-to-side curvature of the spine

What is Scoliosis

300

Also known as the collarbone, this curved bone connects the sternum to the shoulder

What is the Clavicle

300

These giant bone cells secrete enzymes to break down and resorb old bone tissue

What are Osteoclasts

300

This movement moves a limb or body part away from the midline of the body

What is Abduction

300

The process of bone formation, which begins during the 8th week of embryonic development

What is Ossification

300

A bone disease characterized by a loss of bone density and structural deterioration, making bones brittle

What is Osteoporosis

400

This broad, blade-shaped bone forms the top and sides of the hip bone

What is the Ilium

400

his tough fibrous membrane covers the outer surface of bones and provides blood vessels for nutrition and repair

What is the Periosteum

400

hese closed sacs lined with synovial fluid cushion areas where friction occurs between tendons, ligaments, and bones

What are Bursae

400

Located in the center of the diaphysis, this cavity holds yellow bone marrow filled with fat cells

What is the Medullary Cavity

400

Caused by a lack of Vitamin D in children, this disease results in soft, weak bones

What is Rickets

500

Known as the "key bone" of the cranium, it binds all other cranial bones together

What is the Sphenoid

500

This delicate tissue membrane lines the inner medullary cavity of long bones

What is the Endosteum

500

This is the specific name of the first cervical vertebra (C1) that supports the skull

What is the Atlas

500

These tiny microscopic canals branch through compact bone carrying blood vessels to nourish osteocytes

What are Haversian Canals

500

This painful form of acute joint inflammation is caused by uric acid crystal accumulation, commonly in the big toe

What is Gout